Where's is the candy, sir???
Over there.
(kid steps in van)
I don't see any candy.
Candy Van
Explanation
Explain Bear
Listen up, buttercup. This joke is about some dummy getting tricked into a van with the promise of candy. Classic kidnapping scenario, right? But here's the kicker: The kid gets in the van, only to realize there's no candy. It's funny because it's dark and unexpected, just like your surprise when you realize your jokes aren't.